CVE-2026-23842

HIGH EPSS 38.7%
Published Jan 19, 20265mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Jan 19, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

Description

ChatterBot is a machine learning, conversational dialog engine for creating chat bots. ChatterBot versions up to 1.2.10 are vulnerable to a denial-of-service condition caused by improper database session and connection pool management. Concurrent invocations of the get_response() method can exhaust the underlying SQLAlchemy connection pool, resulting in persistent service unavailability and requiring a manual restart to recover. Version 1.2.11 fixes the issue.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
38.7% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-400 Uncontrolled Resource Consumption Resource Mgmt

Affected Products 1

VendorProductVersionRange
chatterbotchatterbot* <1.2.11

References 5

  • github.com https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf
    Patch
  • github.com https://github.com/gunthercox/ChatterBot/pull/2432
    Issue Tracking
  • github.com https://github.com/gunthercox/ChatterBot/releases/tag/1.2.11
    ProductRelease Notes
  • github.com https://github.com/gunthercox/ChatterBot/security/advisories/GHSA-v4w8-49pv-mf72
    ExploitVendor Advisory
  • github.com https://github.com/user-attachments/assets/4ee845c4-b847-4854-84ec-4b2fb2f7090f
    Exploit

Remediation

  • github.com https://github.com/gunthercox/ChatterBot/commit/de89fe648139f8eeacc998ad4524fab291a378cf
    Patch